The district is required to give you a prior written notice “a reasonable time before” it proposes or refuses to initiate or change the identification, evaluation, placement or the provision of a free, appropriate public education (FAPE) to your child. The term “reasonable time” is not defined in the statute. The notice must contain the service or placement proposed or refused by the district, an explanation for the proposal or refusal, a description of each evaluation procedure, assessment, record, or report used by the school district to make their decision. The notice must also inform you of your right to challenge that decision in due process. [34 C.F.R. Sec. 300.503; Cal. Ed. Code Sec. 56500.4.]